Pullup ticket #6673 - requested by thor
blas: build fix for BLAS_TYPE=openblas_pthread

Revisions pulled up:
- mk/blas.buildlink3.mk                                        1.4

---
  Module Name:    pkgsrc
  Committed By:  thor
  Date:          Mon Sep 26 09:33:01 UTC 2022

  Modified Files:
          pkgsrc/mk: blas.buildlink3.mk

  Log Message:
  blas.bl3: Fix BLAS_INCLUDES for openblas_pthread with 32 bit (default) indices

(bsiegert)